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| 252. |  | TUPY, O.; YAMAGUCHI, L. C. T.; BARBOSA, P. F.; FREITAS, A. R. de; FREITAS, A. F. de. Relação entre o intervalo de partos e o custo total de produção de leite por vaca no rebanho. In: SIMPOSIO NACIONAL DA SOCIEDADE BRASILEIRA DE MELHORAMENTO ANIMAL, 2., 1998, Uberaba-MG, Anais... Uberaba: SBMA, 1998. p. 131-134.| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 253. | | CORRÊA, M. J. P.; ARAÚJO, M. S.; SILVA, M. R. M.; FREITAS, A. C. R. de. Levantamento da flora espontânea na cultura do feijão-caupi sob manejo de capoeira triturada no município de Santa Luzia do Paruá - MA. Cadernos de Agroecologia, Cruz das Almas, RS, v.6, n.2, p. 1-5, 2011. 5 p. Resumo expandido.| Biblioteca(s): Embrapa Cocais. |
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| 255. | | VIEIRA, C. L.; FREITAS, A. D.; SILVA, A. F.; SAMPAIO, E. V.; ARAÚJO, M. do S. Inoculação de variedades locais de feijão macassar com estirpes selecionadas de rizóbio. Revista Brasileira de Engenharia Agrícola e Ambiental, v.14, n.11, p. 1170–1175, nov., 2010.| Biblioteca(s): Embrapa Algodão. |
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| 256. | | FREITAS, A. C. R. de; ALMEIDA, M. A.; KATO, O. R.; GEHRING, C. Manejo Ecológico de Capoeiras e Produção de Alimentos por Agricultores Familiares no Bioma Amazônia do Estado do Maranhão. Revista Brasileira de Agroecologia, v. 4, n. 2, p. 2144-2148, nov. 2009. Edição dos anais do 6º Congresso Brasileiro de Agroecologia; 2º Congresso Latinoamericano de Agroecologia, Curitiba, nov. 2009.| Biblioteca(s): Embrapa Amazônia Oriental; Embrapa Meio-Norte. |
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Registro Completo
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Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
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Data corrente: |
18/12/2023 |
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Data da última atualização: |
19/12/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
MENESES, J. O.; DIAS, J. A. R.; CUNHA, F. dos S.; SANTOS, H. L. dos; SANTOS, T. B. R.; SANTOS, C. C. M.; NOGUEIRA FILHO, R. M.; PAIXAO, P. E. G.; SOUSA, N. da C.; COUTO, M. V. S. do; ABE, H. A.; SANTOS, F. J. dos; OLIVEIRA, S. P. C. de; MARIA, A. N.; CARDOSO, J. C.; COSTA, L. P. da; FUJIMOTO, R. Y. |
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Afiliação: |
JULIANA OLIVEIRA MENESES, UNIT; JOEL ARTUR RODRIGUES DIAS, UFPA; FERNANDA DOS SANTOS CUNHA, UNIT; HUGO LEANDRO DOS SANTOS, UFS; THAYS BRITO REIS SANTOS, UNIT; CINDY CAROLINE MOURA SANTOS, UNIT; RICARDO MARQUES NOGUEIRA FILHO, UNIT; PETERSON EMMANUEL GUIMARAES PAIXAO, UNIT; NATALINO DA COSTA SOUSA, UFS; MARCIA VALERIA SILVA DO COUTO, UFS; HIGO ANDRADE ABE, UFS; FRANCISCO JOSE DOS SANTOS, CPATC; SILVIA PATRÍCIA CARRASCHI DE OLIVEIRA, UNIARA; ALEXANDRE NIZIO MARIA, CPATC; JULIANA CORDEIRO CARDOSO, UNIT; LUIZ PEREIRA DA COSTA, ICET; RODRIGO YUDI FUJIMOTO, CPATC. |
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Título: |
Prophylactic and therapeutic effects of a nanocomposite (silver nanoparticle plus Terminalia catappa) against Saprolegnia parasitica in tambaqui. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Aquaculture, v. 574, 739695, 2023. |
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ISSN: |
0044-8486 |
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DOI: |
https://doi.org/10.1016/j.aquaculture.2023.739695 |
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Idioma: |
Inglês |
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Conteúdo: |
Infectious diseases have been the main limiting factor for international fish farming, especially saprolegniosis, which causes large economic losses. Therefore, this study evaluated the prophylactic and therapeutic effect of a nanocomposite (Silver nanoparticle plus extract of Terminalia catappa) to control Saprolegnia parasitica in tambaqui Colossoma macropomum. Two tests were carried out: 1) a therapeutic assay including long and short-term baths, containing two concentrations of nanocomposite each, on infected tambaqui and 2) a prophylactic assay where the zoospore and nanocomposite (four different concentrations) were added at the same time into water for 72 h. Mortality, prevalence index, hematology, and infected areas with S. parasitica on the fish body were evaluated in both tests. In the therapeutic test, all fish from the control group (without nanocomposite) had increased infected area, as well as lethargy and hemorrhage, resulting in 100% mortality. They also had reduced red blood cells, lymphocytes, neutrophils, monocytes, and thrombocytes. In group exposed to nanocomposite, higher concentrations affected mycelial growth, especially in the highest concentration (4.33 mg L− 1), reducing infected areas on the fish body by 98.70% and achieving 100% survival. The treatment with long-term bath at the lowest concentration (0.54 mg L− 1) had increased values of neutrophils. In the prophylactic test, fish groups without handling stress and the methylene blue had no clinical signs or mortality. However, the fish group submitted to handling stress presented the highest prevalence and infected areas resulting in 100% mortality. However, the increasing of nanocomposite concentration promoted less oomycete prevalence, pathology intensity, and mortality. The most effective concentration in the prophylactic assay was 0.87 mg L− 1, preventing the infection without blood alterations. Then, the nanocomposite as prophylactic measured at concentration of 0.87 mg L− 1 is the best strategy to prevent S. parasitica infection in fish. MenosInfectious diseases have been the main limiting factor for international fish farming, especially saprolegniosis, which causes large economic losses. Therefore, this study evaluated the prophylactic and therapeutic effect of a nanocomposite (Silver nanoparticle plus extract of Terminalia catappa) to control Saprolegnia parasitica in tambaqui Colossoma macropomum. Two tests were carried out: 1) a therapeutic assay including long and short-term baths, containing two concentrations of nanocomposite each, on infected tambaqui and 2) a prophylactic assay where the zoospore and nanocomposite (four different concentrations) were added at the same time into water for 72 h. Mortality, prevalence index, hematology, and infected areas with S. parasitica on the fish body were evaluated in both tests. In the therapeutic test, all fish from the control group (without nanocomposite) had increased infected area, as well as lethargy and hemorrhage, resulting in 100% mortality. They also had reduced red blood cells, lymphocytes, neutrophils, monocytes, and thrombocytes. In group exposed to nanocomposite, higher concentrations affected mycelial growth, especially in the highest concentration (4.33 mg L− 1), reducing infected areas on the fish body by 98.70% and achieving 100% survival. The treatment with long-term bath at the lowest concentration (0.54 mg L− 1) had increased values of neutrophils. In the prophylactic test, fish groups without handling stress and the methylene blue had no clini... Mostrar Tudo |
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Thesagro: |
Colossoma Macropomum; Doença Animal; Infecção Contagiosa; Peixe; Piscicultura; Profilaxia; Tambaqui; Transmissão de Doença. |
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Thesaurus NAL: |
Colossoma; Fish; Infectious diseases; Saprolegnia parasitica. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1159906/1/Prophylactic-and-therapeutic-effects...2023.pdf
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Marc: |
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024 7 $ahttps://doi.org/10.1016/j.aquaculture.2023.739695$2DOI
100 1 $aMENESES, J. O.
245 $aProphylactic and therapeutic effects of a nanocomposite (silver nanoparticle plus Terminalia catappa) against Saprolegnia parasitica in tambaqui.$h[electronic resource]
260 $c2023
520 $aInfectious diseases have been the main limiting factor for international fish farming, especially saprolegniosis, which causes large economic losses. Therefore, this study evaluated the prophylactic and therapeutic effect of a nanocomposite (Silver nanoparticle plus extract of Terminalia catappa) to control Saprolegnia parasitica in tambaqui Colossoma macropomum. Two tests were carried out: 1) a therapeutic assay including long and short-term baths, containing two concentrations of nanocomposite each, on infected tambaqui and 2) a prophylactic assay where the zoospore and nanocomposite (four different concentrations) were added at the same time into water for 72 h. Mortality, prevalence index, hematology, and infected areas with S. parasitica on the fish body were evaluated in both tests. In the therapeutic test, all fish from the control group (without nanocomposite) had increased infected area, as well as lethargy and hemorrhage, resulting in 100% mortality. They also had reduced red blood cells, lymphocytes, neutrophils, monocytes, and thrombocytes. In group exposed to nanocomposite, higher concentrations affected mycelial growth, especially in the highest concentration (4.33 mg L− 1), reducing infected areas on the fish body by 98.70% and achieving 100% survival. The treatment with long-term bath at the lowest concentration (0.54 mg L− 1) had increased values of neutrophils. In the prophylactic test, fish groups without handling stress and the methylene blue had no clinical signs or mortality. However, the fish group submitted to handling stress presented the highest prevalence and infected areas resulting in 100% mortality. However, the increasing of nanocomposite concentration promoted less oomycete prevalence, pathology intensity, and mortality. The most effective concentration in the prophylactic assay was 0.87 mg L− 1, preventing the infection without blood alterations. Then, the nanocomposite as prophylactic measured at concentration of 0.87 mg L− 1 is the best strategy to prevent S. parasitica infection in fish.
650 $aColossoma
650 $aFish
650 $aInfectious diseases
650 $aSaprolegnia parasitica
650 $aColossoma Macropomum
650 $aDoença Animal
650 $aInfecção Contagiosa
650 $aPeixe
650 $aPiscicultura
650 $aProfilaxia
650 $aTambaqui
650 $aTransmissão de Doença
700 1 $aDIAS, J. A. R.
700 1 $aCUNHA, F. dos S.
700 1 $aSANTOS, H. L. dos
700 1 $aSANTOS, T. B. R.
700 1 $aSANTOS, C. C. M.
700 1 $aNOGUEIRA FILHO, R. M.
700 1 $aPAIXAO, P. E. G.
700 1 $aSOUSA, N. da C.
700 1 $aCOUTO, M. V. S. do
700 1 $aABE, H. A.
700 1 $aSANTOS, F. J. dos
700 1 $aOLIVEIRA, S. P. C. de
700 1 $aMARIA, A. N.
700 1 $aCARDOSO, J. C.
700 1 $aCOSTA, L. P. da
700 1 $aFUJIMOTO, R. Y.
773 $tAquaculture$gv. 574, 739695, 2023.
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